[PATCH 3/3 -mm] kexec jump -v8 : access memory image of kexec_image

This patch adds a file in proc file system to access the loaded kexec_image, which may contains the memory image of kexeced system. This can be used to: - Communicate between original kernel and kexeced kernel through write to some pages in original kernel. - Communicate between original

[PATCH 3/3 -mm] kexec jump -v8 : access memory image of kexec_image

This patch adds a file in proc file system to access the loaded kexec_image, which may contains the memory image of kexeced system. This can be used to: - Communicate between original kernel and kexeced kernel through write to some pages in original kernel. - Communicate between original